Jimmy John's Says Hacker Took Credit Card Data at 216 Stores

Jimmy John's, a sandwich-shop chain based in Champaign, Illinois, said a hacker infiltrated payment systems at about 216 of its locations and stole credit- and debit-card information.

The incident occurred after an intruder took log-in credentials from Jimmy John's payment-technology vendor and then accessed its point-of-sale systems between June 16 and Sept. 5, the company said today in a statement. The sandwich chain learned of the breach on July 30 and hired forensic experts to handle the investigation, which is continuing.